/* Copyright (c) 2005 Tim Taylor Consulting (see LICENSE.txt) */

ToolMan._eventsFactory = {
  fix : function(event) {
    if (!event) event = window.event

    if (event.target) {
      if (event.target.nodeType == 3) event.target = event.target.parentNode
    } else if (event.srcElement) {
      event.target = event.srcElement
    }

    return event
  },

  register : function(element, type, func) {
    if (element.addEventListener) {
      element.addEventListener(type, func, false)
    } else if (element.attachEvent) {
      if (!element._listeners) element._listeners = new Array()
      if (!element._listeners[type]) element._listeners[type] = new Array()
      var workaroundFunc = function() {
        func.apply(element, new Array())
      }
      element._listeners[type][func] = workaroundFunc
      element.attachEvent('on' + type, workaroundFunc)
    }
  },

  unregister : function(element, type, func) {
    if (element.removeEventListener) {
      element.removeEventListener(type, func, false)
    } else if (element.detachEvent) {
      if (element._listeners
        && element._listeners[type]
        && element._listeners[type][func]) {

        element.detachEvent('on' + type,
          element._listeners[type][func])
      }
    }
  }
};
